The drone is easy to control, with the function of trajectory flight, 3D flight, headless mode, auto-hover, emergency stop, one-key takeoff/landing, take photo/video, speed adjustment, etc. All function allows even beginners, can fly without fear. Taking photo/video function allows you to record every happy moment of you and your friends at any time. Features: Function: Trajectory flight, headless mode, take photo/video, One key takeoff and landing, LED lights, one-button automatic return, altitude holding mode, 360 flip, etc. Built with 4K pixel HD dual cameras, it surprisingly captures stunning images and videos from the sky. With WiFi function, it can connect to apps and take photos, videos and real-time transmission through the phone. Gesture Photo/ Video: Take pictures and videos by posing simple gestures, which achieves great convenience with simple hand motions in photography. With the function of altitude holding mode, the flight is stable. A flight path is drawn on the phone screen and the drone will fly autonomously along the specified path. The drone is small and easy to use. With the button of one key takeoff and landing, simple to control the drone. The headless mode and 360flip come handy even for the drone newbies. Small& Lightweight&Safe: With foldable arms, small size, lightweight, easy to carry. LED lights make flying more spectacular, especially in the dark. 2.4GHz technology adopted for anti-Interference. Protective propeller guards to ensure a safe flight. High-quality ABS material to free your worries of a sudden shock or drop. Specifications: Brand: CSJ Model: S171 PRO Item: RC drone Color: Black Material: ABS Motor: Coreless 716 Frequency: 2.4Ghz Drone battery: 3.7V 500mAh Remote control battery: 3*AAA battery(not included) Charging time: 40min Fly time: 10min Pressure sensor: Height setting Camera adjustment angle: 90 Front camera: Photo resolution: 4096*2160P; Video resolution:1920*1080P Bottom camera:Photo resolution: 4096*2160P; Video resolution:1920*1080P Frame rate: 25 fps APP: WIFI_CAMIOS or Android Remote control distance: 100m 2.4G WiFi image transmission distance: 50-80m Gesture recognition: 1-5m Unfold size: 18x16x4cm Folded size: 8x5.5x4cm Note: * Unable to take off: Before taking off, the drone must be paired with the remote controller, until the light not flash. To take off, you need to press the one-key takeoff button. * APP can't control drones: When APP controls the drone and the drone cannot be connected to the remote controller, the drone needs to be calibrated, until the light not flash to take off. * APP can't show the picture: You need to download the corresponding APP, first connect to the drone's WIFI, then confirm to keep the WiFi connection. The mobile phone system is best not to be too low or too high, because there may be incompatibility, try another mobile phone. * Don't over-charge or over-discharge batteries. Don't put it beside the high-temperature condition. Don't throw it into the fire. Don't throw it into water. * There could be some deviations due to manual measurement or slight color difference owing to photographing condition. Thank you for your understanding. Package Information: Package size: 21.5x11x7cm Package weight: 337g Storage bag package Packing List: 1*RC drone 1*Remote controller 3*Drone battery 1*USB cable 2*Propeller 4*Protection ring 1*Screwdriver 1*Phone stent 2*User manual 1*Storage bag